Eggs are great for quick meals.
Butter a ramakin, season and drop an egg in, pierce the yolk and microwave on half power for 2-3 mins depending on the power of your microwave and the size of the egg - it comes out similar to a McDonalds eggs.
Scrambled with grated cheese whisked in before cooking will give you a protein rich breakfast.
I make soups in the slow cooker, just throw in any veg and seasonings add boiling water and leave for a couple of hours, then use a stick blender.
The soup can sit there all day so you can grab a bowl between looking after your LO. Congratulations by the way.
I saw a great trick on YouTube for a baba ghanoush, it was basically an aubergine baked in the oven until soft, left to cool in a colander so the water drains out and then the cooked 'flesh' was mixed with mayonnaise.
I keep pita bread in the freezer and then stick it into the toaster to defrost and heat through.